Table 3. Post-exercise systolic BP and cardiac structure (sex-pooled analyses) by fitness levels.
| Fitness variables | PWC170 |
PWC170_lm* |
|||||
|---|---|---|---|---|---|---|---|
| Outcome | Lowest: | Middle: | Highest: | Lowest: | Middle: | Highest: | |
|
LV mass, g (n=1049) |
Univariate | 1.097 (0.309, 1.885) n=364* |
0.711 (-0.192, 1.613) n=349 |
0.795 (-0.219, 1.809) n=336 |
1.890 (0.986, 2.794) n=346** |
0.933 (-0.114, 1.981) n=365 |
1.978 (0.924, 3.032) n=338** |
| Model 1# | 0.587 (-0.092, 1.266) n=364 |
-0.207 (-1.009, 0.596) n=349 |
0.460 (-0.438, 1.358) n=336 |
0.959 (0.185, 1.733) n=346* |
-0.081 (-0.961, 0.799) n=365 |
0.645 (-0.269, 1.559) n=338 |
|
| Model 2# | 0.218 (-0.515, 0.950) n=364 |
-0.275 (-1.138, 0.587) n=349 |
0.358 (-0.558, 1.274) n=336 |
0.445(-0.397, 1.287) n=346 |
-0.184 (-1.107, 0.739) n=365 |
0.188 (-0.758, 1.134) n=338 |
|
|
LV mass index, g/m2.7† (n=1033) |
Univariate | 0.218 (0.021, 0.415) n=359* |
0.076 (-0.124, 0.277) n=343 |
0.103 (-0.109, 0.315) n=331 |
0.289 (0.090, 0.487) n=341* |
-0.010 (-0.217, 0.197) n=358 |
0.230 (0.028, 0.432) n=334* |
| Model 1 | 0.193 (0.007, 0.379) * n=359 |
0.068 (-0.128, 0.264) n=343 |
0.124 (-0.079, 0.328) n=331 |
0.267 (0.074, 0.461) n=341* |
-0.019 (-0.226, 0.187) n=358 |
0.181 (-0.024, 0.385) n=334* |
|
| Model 2 | 0.050 (-0.149, 0.248) n=359 |
-0.010 (-0.222, 0.202) n=343 |
0.073 (-0.133, 0.279) n=331 |
0.107 (-0.103, 0.316) n=341 |
-0.069 (-0.287, 0.148) n=358 |
0.070 (-0.141, 0.281) n=334 |
|
|
LA size, cm (n=947) |
Univariate | 0.017 (0.004, 0.030) n=323* |
0.010 (-0.004, 0.023) n=309 |
0.006 (-0.009, 0.021) n=315 |
0.027 (0.013, 0.040) n=306** |
0.003 (-0.011, 0.017) n=332 |
0.013 (-0.002, 0.027) n=309* |
| Model 1 | 0.012 (-0.0003, 0.024) n=323& |
0.002 (-0.011, 0.015) n=309 |
0.004 (-0.010, 0.019) n=315 |
0.019 (0.006, 0.032) n=306* |
-0.001 (-0.015, 0.013) n=332 |
0.006 (-0.009, 0.020) n=309 |
|
| Model 2 | 0.007 (-0.006, 0.021) n=323 |
0.001 (-0.013, 0.015) n=309 |
0.0001 (-0.014, 0.015) n=315 |
0.013 (-0.002, 0.027) n=306 |
-0.007 (-0.022, 0.007) n=332 |
-0.001 (-0.016, 0.014) n=309 |
|
|
RWT (n=1049) |
Univariate | 0.002 (-0.0003, 0.004) n=364 |
0.001 (-0.001, 0.002) n=349 |
-0.0002 (-0.002, 0.002) n=336 |
0.001 (-0.001, 0.003) n=346 |
0.001 (-0.001, 0.003) n=365 |
0.0006 (-0.001, 0.002) n=338 |
| Model 1 | 0.001 (-0.001, 0.003) n=364 |
0.0001 (-0.002, 0.002) n=349 |
-0.0004 (-0.002, 0.001) n=336 |
0.001 (-0.001, 0.003) n=346 |
0.0005 (-0.001, 0.002) n=365 |
0.0003 (-0.001, 0.002) n=338 |
|
| Model 2 | 0.0002 (-0.002, 0.002) n=364 |
-0.0002 (-0.002, 0.002) n=349 |
-0.0007 (-0.003, 0.001) n=336 |
-0.0002 (-0.002, 0.002) n=346 |
-0.0001 (-0.002, 0.002) n=365 |
-0.0001 (-0.002, 0.002) n=338 |
|
Results are unit change β (95% CI) in outcome per 5 mmHg increment in post-exercise systolic BP. LV, left-ventricular; LA, left-atrial; RWT, relative wall thickness. # Model 1: adjusted models include sex, age (months), follow-up time (years), SES, lean body mass (g), height (cm) and maturity offset. Model 2: adjusted model includes sex, age (months), follow-up time (years), SES, lean body mass (g), height (cm), maturity offset and pre-exercise (resting) systolic BP. *Model 1 and model 2 do not include lean body mass (g). † Model 1 and model 2 do not include height (cm). & P =0.056 *P < 0.05, **P ≤ 0.001.